I heard someone say to set the white balance to 6000K which turned out to be way too warm so I put it back to auto. I was watching a tutorial someone else posting showing the Inspire being set to "Log" for the color mode and then dialing back contrast -1, sharpness -3, and saturation -1 but he didn't specify if this was with an ND filter in or not. I guess technically it wouldn't matter since they are color neutral right?

That would depend on available light, conditions, the subject, and a host of other criteria. There are no one-stop-shop settings that will capture every scene and every subject equally well................ it's a fluid, dynamic-driven situation where you have to adjust your settings to compensate for the present conditions. The Auto mode is a "fair" compromise between all of these conditions, but you'll have much more control over your creations when using manual settings. And the only way to learn them is to just start experimenting. I've been at photography for about 2 years, and still have to try very hard to get things set up right. A good book to read is Understanding Exposure by Brian Peterson. It does a good job of explaining the interaction of ISO, Aperture and Shutter Speed, in a non-technical way. Good luck and have fun!

For stills or video? The point of ND filters on the phantom for video is to be able to drop your shutter speed so it's as close to 2x the frame rate as possible. This is going to produce nice smooth pans and reduce any jello/strobe effect in your video. So set shutter and adjust ev accordingly.

There really is no need for the ND filter when shooting stills with the Phantom, imo. ND filters are mainly used for stills when you want to throttle light to decrease shutter speed for effect. For example you want to shoot a stream and have that fuzzy motion blur effect on the water.

In general, you do not necessarily need to use any special settings when using ND-filters. What the NDs will do is lower the shutter speed, and it will do that automatically (or when you are using Manual-mode you will notice and want to set a much lower shutter speed than usual to get a properly exposed image.

I've written up some tips and tricks with the settings I usually use when using ND-filters:

In general, you do not necessarily need to use any special settings when using ND-filters. What the NDs will do is lower the shutter speed, and it will do that automatically (or when you are using Manual-mode you will notice and want to set a much lower shutter speed than usual to get a properly exposed image.

I've written up some tips and tricks with the settings I usually use when using ND-filters:

In general, you do not necessarily need to use any special settings when using ND-filters. What the NDs will do is lower the shutter speed, and it will do that automatically (or when you are using Manual-mode you will notice and want to set a much lower shutter speed than usual to get a properly exposed image.

I've written up some tips and tricks with the settings I usually use when using ND-filters:

In general, you do not necessarily need to use any special settings when using ND-filters. What the NDs will do is lower the shutter speed, and it will do that automatically (or when you are using Manual-mode you will notice and want to set a much lower shutter speed than usual to get a properly exposed image.

I've written up some tips and tricks with the settings I usually use when using ND-filters:

I can personally vouch for the incredible customer service and great filters I received from Jakob at PhantomFilters.com. I am not new to phantoms, but very new to more advanced camera settings and filters... Before I even purchased a set from him, I sent him an amateur question or two about ND Filters and he took a tremendous amount of time to reply with detailed answers that put it into terms I could understand. After a few back and forth emails I felt much better about what ND Filters are capable of doing to bring out the best footage with this p3 camera.. I still need a lot of practice and study with post editing, but wow it was a great experience. I purchased a set and couldn't be happier. He possesses a tremendous amount of knowledge and provides really solid filters for a great price.

Smart Tips, very useful !! Thxs a lot !! I guess it's better to use manual mode to keep the golden ration between fps/Shutter speed, right ? as automatic mode may take me out of it ? but not always easy to estimate the right exposure on an iphone on a sunny day... I'll need some practive here

As most have said, there really is no answer to this question. Get out and test with them. Log as much info as you can about the settings, and conditions while testing and you will start to get a solid base idea as to what settings to be using and when.

Sorry to admit that I bought my filters elsewhere only because at the time I had not heard of you. I took the liberty of downloading and printing your eBook, you're right, anybody can do it. I want to thank you for this invaluable resource! I learned more in 20 minutes than I had in 20 days shooting blind. In payment I will do someone else a good turn and "pay it forward". Thanks.